Cisco Catalyst 2960-XR

If you enter the switch stack-member-number stack port port-number disable privileged EXEC command
and the stack is in the partial-ring state, you cannot disable the port. This message appears:
Disabling stack port not allowed with current stack configuration.
Examples
This example shows how to disable stack port 2 on member 4:
Switch# switch 4 stack port 2 disable
Related Commands
DescriptionCommand
Displays information related to the stack member or the switch stack.
show switch
Catalyst 2960-XR Switch Stack Manager Command Reference, Cisco IOS Release 15.0(2)EX1
36 OL-29435-01
Stack Manager Commands
switch